Data / Nonprofits / Maryland / Leonardtown
Nonprofits in Leonardtown, MD: 123 registered with the IRS
123 nonprofits are registered with the IRS in Leonardtown, MD, 105 of them 501(c)(3) charities; the 42 that report revenue took in $42.2 million. The largest by revenue: St Mary S Nursing Center Inc ($14.3 million), Southern Maryland Resource Conservation & Development Board ($7.4 million), Totally Linking Care in Maryland Inc ($6.9 million). Most common causes: education (12), human services (11), recreation and sports (9).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| St Mary S Nursing Center Inc | Health care | 501(c)(3) | 2001 | $14.3 million | $23.8 million | 2025-06 |
| Southern Maryland Resource Conservation & Development Board | Environment | 501(c)(3) | 1981 | $7.4 million | $3.3 million | 2025-06 |
| Totally Linking Care in Maryland Inc | Health care | 501(c)(3) | 2022 | $6.9 million | $2.3 million | 2025-06 |
| Cedar Lane Senior Living Community I Inc | 501(c)(3) | 1971 | $3.3 million | $6.4 million | 2025-12 | |
| Leonardtown Volunteer Fire Department Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 1990 | $2.1 million | $7.6 million | 2025-06 |
| St Marys Sunshine Center Inc | Human services | 501(c)(3) | 1991 | $1.6 million | $1.3 million | 2025-06 |
| Saint Marys County Fair Association Incorporated | Recreation and sports | 501(c)(3) | 1999 | $688,889 | $1.3 million | 2023-12 |
| Cedar Lane Senior Living Community III Inc | Housing and shelter | 501(c)(3) | 1999 | $679,470 | $2 million | 2025-12 |
| Visit St Marys MD Inc | 501(c)(6) | 2021 | $516,789 | $461,959 | 2025-06 | |
| Boundless Expectations Inc | Human services | 501(c)(3) | 2016 | $469,121 | $14,124 | 2025-12 |
| Hospice of St Marys Inc | Human services | 501(c)(3) | 2000 | $458,078 | $5.2 million | 2025-06 |
| Leonardtown Volunteer Rescue Squade Inc | Health care | 501(c)(3) | 1981 | $455,488 | $4.1 million | 2025-06 |
| Education Association of St Marys County Inc | 501(c)(5) | 1977 | $325,152 | $388,979 | 2025-08 | |
| The St Marys County Arts Council Inc | 501(c)(3) | 1987 | $303,285 | $265,757 | 2025-06 | |
| St Marys County Advanced Life Support Unit Inc | Education | 501(c)(3) | 2009 | $275,885 | $1.1 million | 2025-06 |
| St Marys Animal Welfare League Inc | Animal-related | 501(c)(3) | 1993 | $235,915 | $865,334 | 2022-12 |
| Patuxent Tidewater Land Trust | Environment | 501(c)(3) | 1997 | $222,808 | $1.9 million | 2025-12 |
| Community Mediation of St Marys County Inc | Crime and legal-related | 501(c)(3) | 2006 | $216,436 | $145,143 | 2025-06 |
| Maryland Correctional Administrators Association Inc | 501(c)(6) | 1992 | $187,595 | $38,345 | 2025-06 | |
| On Our Own of St Marys Inc | Mental health and crisis intervention | 501(c)(3) | 2001 | $172,701 | $34,579 | 2025-06 |
| Chesapeake Orchestra Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $166,828 | $34 | 2023-12 |
| Rockfish Swimming Inc | Recreation and sports | 501(c)(3) | 2015 | $157,982 | $27,851 | 2025-12 |
| Saint Marys Girls Lacrosse League | Recreation and sports | 501(c)(3) | 2019 | $144,029 | $99,115 | 2025-12 |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $143,744 | $659,358 | 2025-06 | |
| Friends of the St Marys County Library Inc | Education | 501(c)(3) | 2016 | $126,190 | $26,861 | 2025-12 |
| St Marys County Historical Society Inc | 501(c)(3) | 1972 | $121,894 | $505,174 | 2024-12 | |
| Leonardtown Wildcats Youth Sports Inc | Recreation and sports | 501(c)(3) | 2013 | $111,513 | $9,956 | 2025-12 |
| Fraternal Order of Police | 501(c)(8) | 1952 | $95,860 | $649,324 | 2024-12 | |
| Bread of Life Center for Peace Heavenly Presents Inc | 501(c)(3) | 1995 | $72,263 | $118,675 | 2025-06 | |
| Slack Farms Foundation Inc | Food, agriculture and nutrition | 501(c)(3) | 2019 | $64,028 | $4,772 | 2024-12 |
| Clash of the Kingdoms Ministries Inc | Religion-related | 501(c)(3) | 2025 | $56,006 | $42,485 | 2025-12 |
| St Marys Library Foundation Inc | Education | 501(c)(3) | 2017 | $54,374 | $1 | 2025-12 |
| Friends of Cedar Lane Inc | Housing and shelter | 501(c)(3) | 2007 | $46,372 | $228,854 | 2025-12 |
| Hope in Harmony Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $46,179 | $24,785 | 2025-06 |
| Shop With A Cop | Human services | 501(c)(3) | 2007 | $44,588 | $31,169 | 2024-12 |
| St Marys County Farm Bureau Inc | 501(c)(5) | 1973 | $41,585 | $436,309 | 2024-12 | |
| Leonardtown Lions Club Charitable Foundation | Human services | 501(c)(3) | 2008 | $40,125 | $92,190 | 2025-06 |
| Knights of Columbus | 501(c)(8) | 1940 | $5,850 | $7,398 | 2025-06 | |
| Garvey Senior Activity Center Council Inc | Human services | 501(c)(3) | 2015 | $1,041 | $259 | 2023-12 |
| St Marys County Public Schools Science Technology Engineering & M | Education | 501(c)(3) | 2002 | $924 | $18,713 | 2025-06 |
| Somd Loves You Inc | Human services | 501(c)(3) | 2020 | $5 | $17,779 | 2024-12 |
| 1abacus Inc | 501(c)(3) | 2026 | ||||
| A Message of Hope Cancer Fund | Diseases, disorders and medical disciplines | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Afcea Educational Foundation | 501(c)(3) | 1984 | $0 | $0 | 2025-09 | |
| Alices Landing MD | Housing and shelter | 501(c)(3) | 2026 | |||
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Animal Rescue & Outreach Organization | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Aposteriori | Science and technology | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Breton Bay Civic Association Inc | Recreation and sports | 501(c)(7) | 2024 | $0 | $0 | 2025-12 |
| Cedar Lane Senior Living Community II Inc | 501(c)(3) | 1981 | $0 | $1 | 2025-12 | |
| Childrens Literacy Program Fund | International, foreign affairs and national security | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Delta Sigma Theta Sorority Inc | 501(c)(7) | 1952 | ||||
| Energy Impact Inc | Public and societal benefit | 501(c)(3) | 2025 | |||
| Father Andrew White S J School | 501(c)(3) | 1946 | ||||
| Footprints for Faith | Mental health and crisis intervention | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Foundation of Leonardtown Rotary Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $0 | $0 | 2026-06 |
| Francis F & Margaret L Greenwell Catholic School Scholarship | Education | 501(c)(3) | 2022 | $5.8 million | 2025-12 | |
| Fraternal Order of Police | 501(c)(8) | 1972 | $0 | $0 | 2025-12 | |
| Hearts Hello Inc | Education | 501(c)(3) | 2024 | |||
| Her Story Is My Story Incorporated | Employment | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Herbert M & Naomi R Leavitt Fam Charitable Trust | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $268,736 | 2025-12 | |
| International Association of Lions Clubs | 501(c)(4) | 1966 | $0 | $0 | 2025-06 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2026-06 | |
| Leonardtown Baptist Church | 501(c)(3) | 1963 | ||||
| Leonardtown Business Association Inc | Community improvement and capacity building | 501(c)(6) | 2014 | $0 | $0 | 2025-06 |
| Leonardtown Church of the Nazarene | 501(c)(3) | 1963 | ||||
| Leonardtown High School Band Boosters | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Leonardtown Raiders Football Quarterback Club Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Life Changing Healing Church Inc | Religion-related | 501(c)(3) | 2007 | |||
| Logan C Caton Charitable Foundation | Diseases, disorders and medical disciplines | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Loveville Christian Fellowship | Religion-related | 501(c)(3) | 2007 | |||
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2026-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2026-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2026-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2026-06 | |
| Maryland 4-H Club Foundation Inc | 501(c)(3) | 2013 | $0 | $0 | 2025-06 | |
| Maryland 4-H Club Foundation Inc | Youth development | 501(c)(3) | 2013 | $0 | $0 | 2025-06 |
| Meow Dyer Cat Rescue | Animal-related | 501(c)(3) | 2026 | |||
| Miltek Inc | Science and technology | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Moll Dyer Foundation | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| National Veteran Hunters Associatio N Inc | Human services | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Open Door Bible Church of St Marys County Inc | 501(c)(3) | 1993 | ||||
| Pflag Southern Maryland | Civil rights, social action and advocacy | 501(c)(3) | 1943 | $0 | $0 | 2025-09 |
| Pta Delaware Congress | 501(c)(3) | 1971 | $0 | $0 | 2025-06 | |
| Pta Delaware Congress | 501(c)(3) | 1971 | $0 | $0 | 2025-06 | |
| Pta Maryland Congress of Parent & Leonardtown Elementary School Pta | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Roll Out Racing | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Rotary International | 501(c)(4) | 1958 | $0 | $0 | 2026-06 | |
| SMS Sting Classic Inc | Youth development | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Second Hope Rescue Inc | Animal-related | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Serra International | 501(c)(3) | 1949 | $0 | $0 | 2025-05 | |
| Society Hill Garden Club of Breton Bay | Environment | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Society of St Vincent de Paul St Aloysius | Religion-related | 501(c)(3) | 2014 | $0 | $0 | 2025-09 |
| Somd Pinups for Paws Inc | Animal-related | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Southern Maryland Athletic Conference | Education | 501(c)(3) | 2025 | |||
| Southern Maryland Concert Band Inc | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Southern Maryland Rugby Football Association | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Southern Maryland Traditional Music and Dance Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Southern Maryland Youth Basketball | Recreation and sports | 501(c)(3) | 2026 | |||
| Southpoint Church Inc | Religion-related | 501(c)(3) | 2014 | 2013-12 | ||
| St Marys Assocation of Supervisors and Adminstrators | Employment | 501(c)(5) | 2013 | $0 | $0 | 2025-09 |
| St Marys Co Chamber of Commercebusinesses for A Better Community I | Community improvement and capacity building | 501(c)(3) | 2007 | $0 | $0 | 2025-06 |
| St Marys Council No 1470 Knights of Columbus Charities Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2005 | $48,557 | 2025-06 | |
| St Marys County Business Education and Community Alliance Inc | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| St Marys County Genealogical Society Inc | 501(c)(3) | 1991 | $0 | $0 | 2025-06 | |
| St Marys County Silent Angel Memorial | Community improvement and capacity building | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| St Marys Helping Hands Inc | Human services | 501(c)(3) | 1992 | $0 | $0 | 2025-12 |
| St Marys Holding Company Inc | Human services | 501(c)(3) | 2022 | $0 | $300,303 | 2025-06 |
| St Marys Nursing Center Foundation Inc | 501(c)(3) | 1990 | $0 | $0 | 2025-06 | |
| St Marys Ryken Inc | Education | 501(c)(3) | 1946 | |||
| St Matthews Free Gospel Church of Christ | 501(c)(3) | 2000 | ||||
| To Be Known Ministries Inc | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Us Military Vets Somd MC Southern Maryland | Public and societal benefit | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Washington Area Secular Humanists Inc Wash | 501(c)(3) | 1989 | $0 | $0 | 2025-06 | |
| Watermelon Inc | Arts, culture and humanities | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Womans Club of St Marys County | Community improvement and capacity building | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| Zeta Phi Beta Sorority | 501(c)(7) | 1960 | $0 | $0 | 2025-12 | |
| Admirals Select Lacrosse | Recreation and sports | 501(c)(3) | 2018 | $-10,286 | $790 | 2025-12 |
By cause in Leonardtown, MD
- Education 12
- Human services 11
- Recreation and sports 9
- Religion-related 6
- Animal-related 5
- Arts, culture and humanities 5
- Community improvement and capacity building 4
- Housing and shelter 3
- Philanthropy, voluntarism and grantmaking foundations 3
- Health care 3
- Environment 3
Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.